What are some ways we can shift personal health from something that is internal (i.e. medical/pharmaceutical approach) to an external approach (i.e. air quality, soil)?
In: Biology
Name 3 main steps of cellular eespiration and 2 main of photosynthesis. where in the eukaryotic cell they occur? how about the prokaryotic cell?
pleasw make table if needed.
In: Biology
Describe soil and soil microbe contribution to the biogeochemical cycle. Define rhizospere?
In: Biology
Discuss the causative agent,mode of transmission and clinical symptoms and 2 priority nursing interventions for the following, Smallpox, Rubella, Chicken pox. Candidias,Pediculosis, Neonantal Gonorrheal Ophthalmia, Conjuctivitis and Trachoma.
Your paper has to be 1 page long.
In: Biology
In: Biology
A population of bears contains 56 animals with black fur and 25
animals with brown fur. Black fur is the dominant trait. How would
you calculate the frequency of the brown alleles (write out the
equation(s) with the appropriate numbers as well as the
answer)?
In: Biology
You are in charge of the national Unicorn breeding program. Unicorns can have either swirled or solid horns with the swirled (Sw) phenotype being dominant over solid (sw). Their fur can be gold (F+), bronze (fb), silver (fs) or white (fw), with the colour alleles following a dominance series of: F+ > fb > fs > fw
question 1
a) Which pair could you mate to potentially get some offspring with silver fur and swirled horns?
Select one:
a. A bronze and swirled horned unicorn with a white and solid horned unicorn
b. A true breeding gold and swirled horned unicorn with a true breeding white and solid horned unicorn
c. A silver and solid horned unicorn with a silver and solid horned unicorn
b) You mate a silver fur, solid horned unicorn, whose mother had white fur and a swirled horn, with a white fur, solid horned unicorn whose mother had gold fur and a solid horn. What is the probability that the offspring will have white fur (with any type of horn)?
Select one:
a. 1/16
b. 1/3
c. 1/4
d. 1/2
question 2
Merfolk have three pairs of autosomes and one sex chromosome; males are X0 and females are XX.
In merfolk the genes controlling tail fin shape and scale colour are on different autosomes. Solid tail fin (Ff) is dominant to forked tail fin (ff), and the F allele is recessive lethal. There are two alleles of the scale colour gene – CB(blue) and CR (red)– CB and CR show incomplete dominance with heterozygotes being purple.
The silent trait is X-linked and dominant (XS) to normal voice (X+).
Atolla is a male merfolk, he has a forked tail fin, blue scales, and is voiceless (silent). Brachy is a female merfolk with a solid tail fin, purple scales and a normal voice.
a) What is the probability that a female child of a mating between Brachy and Atolla will be silent (it doesn't matter what tail shape or scale colour the child has)?
Select one:
a. 1/4
b. 0
c. 1/2
d. 3/4
e. 1
b) What is the probability that a mating between Brachy and Atolla would produce a child with a forked tail and purple scales (doesn’t matter whether they are silent or not)?
Select one:
a. 3/4
b. 1/3
c. 1/4
d. 2/3
e. 1/2
c) You mate a female merfolk with blue scales who is heterozygote for silent and a carrier of forked tail, to a silent male with blue scales who is also a carrier of forked tail. Which of the following are TRUE statements (you can choose more than one)
For this question ignore the phenotypes that are unmentioned. For example "a blue female" is a blue female who can be any colour, and either be silent or normal.
Select one or more:
a. This mating can produce silent or normal voiced offspring
b. This mating can produce silent or normal voiced female offspring
c. The probability of a female offspring having a forked tail and blue scales is 1/3
d. The probability of an offspring from this mating having a forked tail and normal voice is 1/6
In: Biology
In: Biology
In: Biology
By considering the genotypes in a single generation (NOT changes in frequencies over time or changes from one generation to the next), how would you show that natural selection is occurring in the Near-Lethal Homozygote (near-lethal recessive) simulation (Hint: think about Hardy-Weinberg Equilibrium).
In: Biology
Which vertebrate group typically has smaller
respiratory surfaces than mammals and why?
please explain
In: Biology
In: Biology
In: Biology
Small populations of flies that had three genotypes/phenotypes for eye color (red,orange, and white) were observed over several generations under laboratory controlled conditions (all the same for the samples). Over time the diversity in many of the populations changed from flies of three colors to flies of one color, inevitably red or white, but never the heterozygous condition of orange. These observations suggest a. Natural Selection, red or white eyes were more adaptive. b. Sexual Selection, the females were not attracted to orange eyes. c. Genetic Drift, fixation happen rapidly in these small populations.
In: Biology
Under which circumstances would a muscle cell be undergoing -oxidation instead of glycolysis? Select all correct answers.
a. Cellular ATP levels are low
b. O2 is limited
c. O2 is abundant
d. Cellular ATP levels are high
e. Blood glucose levels are low
In: Biology